Filter.



E. OOUSENS.

FILTER.

APPLICATION FILED YRB.21.1914.

Patented Dec. 8, 1914.

E. COUSENB.

FILTER.

APPLICATION FILED PBB.2]. 1914 Patented Dc. 8,1914.

2 SHEETB SHEET 2.

A A A /A /////-/lr/ EDWARD COUSENS, OF GHISVVICK, LONDON, ENGLAND.

- FILTER.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed February 21, 1914. Serial No. 820,177.

rays and emanations given oil by the radioactive material contained in the apparatus. 15 The main object of the invention is to construct an apparatus fulfilling the above referred to purpose in such manner that the block containing the radio-active material will be supported at such a level below the. 39 outlet of the apparatus that said block will be always submerged, so that there will be no waste of rays and emanations such as necessarily occur when the block is exposed to the air.

95 A further object of the invention is to construct an apparatus for the purposes of the invention in such manner that the receptacle for the water'or liquid to be rendered radio-active, the support for the block containing the radioactive material and the passage by which said support is'placed in communication with said receptacle will form a structural entity which can be readily removed from the containing vessel by" the mere act of lifting, thus facilitating the cleanin of the apparatus and the replacement said block.

The invention is illustrated by the accompanying drawings.

Of these drawings Figure 1 is averticalsection of one form of apparatus, and Fig. 2 is a sectional plan thereof, the section being taken on the ins H of Fig. 1. Fig. 3 is a vertical section of a slightly modified construction of apparatus, and Fig. 4 is a plan of same with the lid removed.

all of the figures like parts are indicated by the same reference numerals. 1 is an outer containing vessel, which is 5. closed by means of a lid 2. The containing vessel 1 is constructed of'two parts 3 and 4 of different diameters and an intermediate connecting ledge 5.

6 is a drum-shaped receptacle which rests on the ledge 5 and is connected by means of :1 depending tubular arm 7, or, if desired, a pair of similar tubular arms, to a on 8 10- ca ted below the bottom of the outlet 9 of the apparatus. The cup 8 serves as a support for a'block 10 formed of a filtering medium and radio-active material, which may be of the nature already referred to. The block ll) is supported above the bottom of the .cup

and 'in such a Way that it can be readily removed, and is for this pur ose plabed in a.

removable ease or holder. his holder may consist, as shown in the drawings, of sconed sleeve 11 provided with suitable diaphragms 12 and 13 and held in place in the top ortion. of the cup by means of a pac ing ring 14.

15 is a draw-oil tap. The parts of the improved ap aratus may be constructed of glass. The rumshaped 4 receptacle 6, the depending tubular! arm 7 76 and the cup 8 may be made in one piece.

This construction is illustrated by Figs. 1

and 2. For the sake of facilitating the construction of the apparatus the above enumerated Figs. 3 and 4-. When this latter construc tion is adopted the major part ofthe depending tubular arm 17 may be of vulcanite or other like material-while the rest of the 35 parts just referred to could be formed of glass. The tubular arm 17 is connected to' the cup by a bend pipe 18, and both it and the bend pipe are provided with suitable connecting sockets 19. I 00 The apparatus is used in the following manner :The water or other liquid to be rendered radio-active is poured into the drum-shaped receptacle 6. This'water or liquid passes into the depending tubular arm or arms 7 and intothe cup 8, and slowly percolating. through the block 10 collects in the outer containing vessel 1 from which it is drawn oil as required by the tap 15.

Having now described my invention what I have invented and desire to secure by Letters Patent in the United States is as follows a 1 In a filter, the combination, with an outer vessel provided with a lateral outlet for filtered liquid, of a receptacle, for the liquid to be filtered, supported in the upper part of the said vessel, a tubular arm depending from the said receptacle, a cup carried by the lower end of the said arm and arts are preferably constructed so i separate rom one another, as illustrated by arranged below the level ofthe said outlet,

and a removable block of filtering material arranged in the upper 'part of the said cup. 2, An apparatus for rendering water, mineral water or otherliquid radio-active and destroying mkn'o-organisms present in Said water or liquid consisting of an outer vessel for containing the radio-active Water or liquid, an outlet from said vessel located at a distance above the bottom thereof,-a tap controlling said outlet, a lid closing said outer vessel, a receptacle for the water or hquld to be rendered lL l-l.0*2l0l3l\/Q supported from the upper part of said outer vessel, :1

tubular arm depending from the bottom of said receptacle, :1 cup supported by the lower end of said tubular armand communicating therewith, and a block containing',radio-active material supported by said cup at a level below the outlet from said outer vessel, sul'rstantially as described. s

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDWARD COUS'ENS.

Witnesses AR'rnUR'F. ENNIS, O. J. WORTH. 

